<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
			div{
				/* 边框 */
				/* border-top: 1px solid #0000FF; */
				border: 1px solid #ff5500;
				/* 边距 */
				padding-top: 10px ;
				/* 外边距 */
				margin-bottom: 10px;
				
			}
		</style>
	</head>
	<body>
		<div id="">内容体</div>
		<span id="">内容体</span>
	</body>
</html>
